Home / 90,935.12-125,447.00-70,653.20

Finding the Fourth Proportional to 90,935.12, 125,447.00 and 70,653.20

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Solution

The fourth proportional to 90,935.12, 125,447.00 and 70,653.20 is: 97,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.12 : 125,447.00 = 70,653.20 : x
  2. Step 2: Convert to fraction form
    90,935.12/125,447.00 = 70,653.20/x
  3. Step 3: Cross multiply
    90,935.12x = 125,447.00 × 70,653.20
  4. Step 4: Simplify right side
    90,935.12x = 8,863,231,933.99
  5. Step 5: Solve for x
    x = 8,863,231,933.99/90,935.12
  6. Step 6: Final answer
    x = 97,467.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.